The mid red shade of cadmium is the favorite among artists for many reasons. It has a bright blood red hue that is very attractive and it is used as a general purpose red on the palette. It has very high lightfastness, although it is not as permanent as Cadmium Yellow it was the most permanent red available to the artist prior to the introduction of the pyrrole reds. it is possible that in the long run the pyrroles may usurp the crown of king of the reds but for now Cadmium Red is holding its own because it has a number of advantages. It is very opaque. There are times when transparency is desired, but even more times when opacity and covering power are important. No other bright red pigment is as opaque as Cadmium Red. It is also seen as a good value pigment when compared to some of the newer reds which can be comparatively expensive.
Chemical Description: Cadmium sulphoselenide
Pigment Number: PR108
Lightfastness Rating: ASTM I
Pigment Opacity: Opaque
Paint Opacity: Opaque